SrScientist,BiologicsCharacterization

Regeneron’s Product Biochemistry in Tarrytown, NY is seeking a motivated and innovative Senior Scientist to drive late-stage development (Phase II through commercialization) of biologics. You will develop and deploy analytical methods and purification strategies, enrich and characterize product variants, and help onboard new technologies that deepen product understanding and improve processes across the pipeline. This role is for you if you are scientifically creative, hardworking, efficient, flexible, and able to perform key responsibilities in a fast-paced, team environment. ## Key Responsibilities: * Develop analytical methods and purification protocols to support extended characterization of therapeutic proteins and gene therapy vectors. * Conduct biochemical/biophysical characterization to support development, regulatory submissions, and commercialization. * Apply DOE, advanced statistics, and risk assessments to evaluate and optimize methods and processes. * Author high-quality technical documents (protocols, reports, memos) and contribute to regulatory sections and publications. Ensure timely documentation of experiments following established SOPs and guidelines. * Maintain instruments, troubleshoot issues, and improve lab/data workflows within your area of expertise. Adhere to procedures, guidance, and best practices to ensure lab safety. * Proactively identify process improvement opportunities across Product Biochemistry and Regeneron and help drive implementation. ## ## A Typical Day in the Role Might Look Like: * Design and execute experiments to enrich, purify, and characterize size/charge variants, complexes, and high-concentration formulations. * Integrate learnings from internal data and external literature to make science-based study design recommendations. * Documents experiments, results and findings in electronic laboratory notebook; presents work at group and department meetings; contributes to drafting of protocols, method development reports, r